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A Splitting Condition and Geometric Rates of Convergence to Equilibrium

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Stationary Processes and Discrete Parameter Markov Processes

Part of the book series: Graduate Texts in Mathematics ((GTM,volume 293))

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Abstract

This chapter builds on the representation of Markov processes in terms of i.i.d. iterated maps by developing the so-called “splitting techniques”that capture the recurrence structure of certain iterated maps in a novel way.

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Notes

  1. 1.

    See Bhattacharya and Majumdar (2007), Bhattacharya and Waymire (2002) for this and related refinements.

  2. 2.

    For further results on the problem of delineating the structure of π b beginning with early results of Erdos (1937), see Peres et al. (1999).

  3. 3.

    See Gelman et al. (1995) for an early exposition. Also see Chib and Greenberg (1995).

  4. 4.

    The Corollary 19.8 also extends to closed sets \(S\subset {\mathbb R}^k\), with a coordinatewise partial order. For this, see Bhattacharya and Lee (1988). Also see Bhattacharya and Majumdar (2010a), and Chakroborty and Rao (1998).

  5. 5.

    See BCPT Theorem 7.1, pp. 137–139; Billingsley (1968): pp. 11–14.

  6. 6.

    [Personal communication (1994)] This example was kindly furnished by Professor B.V. Rao, ISI Kolkata, India.

  7. 7.

    See Bhattacharya and Lee (1997).

  8. 8.

    Some general insights and detailed analysis for subsets S of \({\mathbb R}\) and \({\mathbb R}^2\) may be found in Chakroborty and Rao (1998).

  9. 9.

    For the details, we refer to Bhattacharya and Majumdar (2007), p. 315.

  10. 10.

    [Personal Communication (2019)] This was kindly pointed out by Dr. Eduardo A. Silva of the Universidade de Brasilia, Brazil.

  11. 11.

    For the speed of convergence to the invariant probability in these examples, see Lund and Tweedie (1996) and Bhattacharya and Majumdar (2010a) (with polynomial rates).

  12. 12.

    Markov processes generated by i.i.d. iterations of quadratic maps were considered by Bhattacharya and Rao (1993). Also see Athreya and Dai (2000), Bhattacharya and Majumdar (2004), (2007).

  13. 13.

    These examples and much more are presented in Bhattacharya and Majumdar (2007).

  14. 14.

    This example may be found in Mirman (1980).

  15. 15.

    In the physics literature, both in the definition of H(s) and the exponent, defining π, each, has a minus sign. The signs are included there to make alignment of spins the least energetic (ground states), as well as to make them the most likely in the case β > 0. However, since they cancel, we omit them for convenience.

  16. 16.

    A version of this so-called coupling from the past method already appears in the proof of Proposition 19.7. The application to Monte Carlo simulations was effectively developed by Propp and Wilson (1998).

  17. 17.

    See Haggstrom and Nelander (1998) for an extension exploiting earlier ideas of Wilfrid Kendall.

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Bhattacharya, R., Waymire, E. (2022). A Splitting Condition and Geometric Rates of Convergence to Equilibrium. In: Stationary Processes and Discrete Parameter Markov Processes. Graduate Texts in Mathematics, vol 293. Springer, Cham. https://doi.org/10.1007/978-3-031-00943-3_19

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